a.Collection of entities that participate in the network. Question 9: Above the file systems comes the ________ engine, which consists of one Job Tracker, to which client applications submit MapReduce jobs. For YARN, the ___________ Manager UI provides host and port information. d) None of the mentioned This section focuses on "HBase" in Hadoop. d) None of the mentioned b) NameNode It has important twenty basic questions about various Data Structures topics. a) HDFS is not suitable for scenarios requiring multiple/simultaneous writes to the same file, b) HDFS is suitable for storing data related to applications requiring low latency data access, c) HDFS is suitable for storing data related to applications requiring low latency data access. Question 20: ______ is a framework for performing remote procedure calls and data serialization. Only Java supported since Hadoop was written in Java. Objective. d) None of the mentioned These Multiple Choice Questions (MCQ) should be practiced to improve the Hadoop skills required for various interviews (campus interviews, walk-in interviews, company interviews), placements, entrance exams and other competitive examinations. d.Collection of nodes in a graph b.0.6 Creator Doug Cutting's favorite circus act. This Hadoop Online Test simulates a real online certification exams. c.10 Explanation: MapReduce engine uses to distribute work around a cluster. 9858799587 b.PageRank What does “Velocity” in Big Data mean? Question 15: Point out the wrong statement: (A) Amazon Web Service Elastic MapReduce (EMR) is Amazon packaged Hadoop offering, (B) Elastic MapReduce (EMR) is Facebook packaged Hadoop offering, (C) Scalding is a Scala API on top of Cascading that removes most Java boilerplate. a) MapReduce tries to place the data and the compute as close as possible What was Hadoop named after? It provides massive storage for any kind of data, enormous processing power and the ability to handle virtually limitless concurrent tasks or jobs. Explanation: Data warehousing integrated with Hadoop would give a better understanding of data. Although the Hadoop framework is implemented in Java, MapReduce applications need not be written in ____________ d) None of the mentioned Answer: b Hadoop was named after? Answer : a.Collection of entities that participate in the network. a) HBase a) Rack c.Park-Check-Yu Hadoop Hive MCQs. a.K-means a) Mapper Cutting's high school rock band. Question 1: Facebook Tackles Big Data With _______ based on Hadoop. c) Scala Answer :a.Park-Chen-Yu, 2. b.Edge measure 1.A ________ serves as the master and there is only one NameNode per cluster. When a machine is declared as a datanode, the disk space in it Explanation: Cascalog also adds Logic Programming concepts inspired by Datalog. c) Hadoop Stream Explanation: Hadoop Pipes is a SWIG- compatible C++ API to implement MapReduce applications (non JNITM based). b.Graph Explanation: Hive also support custom extensions written in Java, including user-defined functions (UDFs) and serialize
Explanation: All the metadata related to HDFS including the information about data nodes, files stored on HDFS, and Replication, etc. Question 18: The Pig Latin scripting language is not only a higher-level data flow language but also has operators similar to ___________ . Different algorithms can be used in different scenarios based on their capabilities. a.6 Question 14: Hive also support custom extensions written in ___________ . You have to select the right answer to every question. a) Hive is not a relational database, but a query engine that supports the parts of SQL specific to querying data, b) Hive is a relational database with SQL support, c) Pig is a relational database with SQL support. Any programming language that can comply with Map Reduce concept can be supported. Explanation: HBase Master UI provides information about the number of live, dead and transitional servers, logs, ZooKeeper information, debug dumps, and thread stacks. d.Park-Check-You c) worker/slave Creator Doug Cuttings favorite circus act; The toy elephant of Cuttings son; Cuttings high school rock band; A sound Cuttings laptop made during Hadoops development Hadoop MCQ.docx - Which of the following is true about MapReduce(A Data processing layer of hadoop(B It provides the resource management(C It is an open ... 256MB What was Hadoop named after? Answer : d.Edge betweenness, 19.“You may also like these…”, “People who liked this also liked….”, this type of suggestions are from the______________ d.Continuous operator and discrete queries, c.the number of hash functions and the density of 1’s in the array, Answer : c.the number of hash functions and the density of 1’s in the array, a.Continuous queries and discrete queries, Answer : b.Savasere,Omiecinski and Navathe, 4.Minimum Support=?,if total Transaction =10 and minimum Support=60%, a.graph may contain no edges and many vertices, b.graph may contain many edges and atleast one vertices, c.graph may contain no edges and no vertices, d.graph may contain no vertices and many edges, Answer : b. graph may contain many edges and atleast one vertices. a) DataNode is the slave/worker node and holds the user data in the form of Data Blocks, b) Each incoming file is broken into 32 MB by default, c) Data blocks are replicated across different nodes in the cluster to ensure a low degree of fault tolerance. Explanation: Apache Pig is a platform for analyzing large data sets that consists of a high-level language for expressing data analysis programs. d.All of the above c.Twitter Explanation: The Hadoop framework itself is mostly written in the Java programming language, with some native code in C and command-line utilities written as shell-scripts. Grab the opportunity to test your skills of Apache Hadoop.These Hadoop multiple choice questions will help you to revise the concepts of Apache Hadoop and will build up your confidence in Hadoop. Answer: c The need for data replication can arise in various scenarios like ____________ a) Creator Doug Cutting's favorite circus act b) Cutting's high school rock band c) The toy elephant of Cutting's son d) Doug Cutting'S nick name. a) inputs Explanation: HDFS is implemented in Java and any computer which can run Java can host a NameNode/DataNode on it. b) outputs Explanation: The web interface for the Hadoop Distributed File System (HDFS) shows information about the NameNode itself. Question 4: Sun also has the Hadoop Live CD ________ project, which allows running a fully functional Hadoop cluster using a live CD. c) “DFS Shell” b.Bratislav V. Stojanović a.Edge path 1.PCY Stands for Explanation: Hadoop batch processes data distributed over a number of computers ranging in 100s and 1000s. Question 33: _________ function is responsible for consolidating the results produced by each of the Map() functions/tasks. Explanation: With the default replication value, 3, data is stored on three nodes: two on the same rack, and one on a different rack. Question 36: ________ is a utility which allows users to create and run jobs with any executables as the mapper and/or the reducer. 6. Trivia . c) HashPartitioner d.All of the above Answer : a.Link structure of the Web graph, 16.When the objective is to mine social network for patterns, a natural way to represent a social network is by a___________ d) Replication Question 13: ________ hides the limitations of Java behind a powerful and concise Clojure API for Cascading. d) Replication Explanation: HDFS is implemented on any computer which can run Java can host a NameNode/DataNode on it. Answer: b a.Yahoo c) Data blocks are replicated across different nodes in the cluster to ensure a low degree of fault tolerance Answer: a b.3 a.Park-Chen-Yu d.Correlation Similarity Answer: a _________ function is responsible for consolidating the results produced by each of the Map() functions/tasks. d) JobTracker Explanation: Map Task in MapReduce is performed using the Map() function. a) Replication Factor can be configured at a cluster level (Default is set to 3) and also at a file level Explanation: To use Hive with HBase you’ll typically want to launch two clusters, one to run HBase and the other to run Hive. Hadoop MCQ Questions: We have listed here the Best Hadoop MCQ Questions for your basic knowledge of Hadoop. c.Collection of vertices & edges in a graph. Explanation: Prism automatically replicates and moves data wherever it’s needed across a vast network of computing facilities. c) Data blocks are replicated across different nodes in the cluster to ensure a low degree of fault tolerance b) Map b.Collaborative System Answer: a d.None of the above (A) Creator Doug Cutting favorite circus act, (D) A sound Cutting laptop made during Hadoop development. Answer : b.PageRank, 8.One of the popular techniques of Spamdexing is ___________ Hadoop MCQs – Big Data Science. Question 3: What license is Hadoop distributed under ? b.tree showing how close things are to each other b.graph may contain many edges and atleast one vertices Explanation: Total size of inputs means the total number of blocks of the input files. a.MapReduce Answer : b.Hierarchical, 5.Which of the following function is used for k-means clustering? ... (MCQs) related to Hadoop Framework. B. b) Speed of individual … 3.Which of the following is finally produced by Hierarchical Clustering? As the Hadoop Questions are part of various kind of examinations and interviews. b) Block Report from each DataNode contains a list of all the blocks that are stored on that DataNode b) Partitioner a) Creator Doug Cutting’s favorite circus act, d) A sound Cutting’s laptop made during Hadoop development. C. The toy elephant of Cutting's son. Explanation: The programming model, MapReduce, used by Hadoop is simple to write and test. c) ActionNode Answer : a.6, 5. __________ maps input key/value pairs to a set of intermediate key/value pairs. b.High Informative Topic Search Answer: a d.Crocking Explanation: NameNode is aware of the files to which the blocks stored on it belong to. Explanation: This feature of MapReduce is “Data Locality”. 3.HDFS works in a __________ fashion. In Hadoop during Speculative Execution, a certain number of … It will help you to know the basics of big data. Explanation: Secondary namenode is used for all time availability and reliability. ... MCQ! Hadoop MCQs : This section focuses on "Basics" of Hadoop. b) Each incoming file is broken into 32 MB by default b) HDFS is suitable for storing data related to applications requiring low latency data access d.Google Common cohorts include __________ . d) None of the mentioned c) Both Mapper and Reducer a.graph may contain no edges and many vertices c.Facebook 1. Who was written Hadoop? Which of the configuration file is used to control the HDFS replication factor? b.Hierarchical These Multiple Choice Questions (MCQ) should be practiced to improve the hadoop skills required for various interviews (campus interviews, walk-in interviews, company interviews), placements, entrance exams and other competitive examinations. Point out the wrong statement. c) TaskTracker Explanation: The Apache Mahout project’s goal is to build a scalable machine learning tool. Answer : c.Hyperlink-induced topic Search, 15.HITS algorithm and the PageRank algorithm both make use of the _________to decide the relevance of the pages. c.FastMap Doug Cutting, Hadoop’s creator, named the framework after his child’s stuffed toy elephant. Answer : b.Support(A B) / Support (B), 1.Which of the following is true? Explanation: The MapReduce framework takes care of scheduling tasks, monitoring them and re-executes the failed tasks. b.tree showing how close things are to each other, Answer : b.tree showing how close things are to each other, Answer : c.Hyperlink-induced topic Search, Answer : a.Link structure of the Web graph, a.Heterogeneous and multi relational dataset, Answer : a.Heterogeneous and multi relational dataset, https://lastmomenttuitions.com/courses/placement-preparation/, https://www.youtube.com/channel/UCGFNZxMqKLsqWERX_N2f08Q. b) Data a.Clocking b) NameNode b) C Answer: b d) None of the mentioned a.Relative importance Question 25: Which of the following is not an input format in Hadoop ? Answer: c Answered MCQ; What was Hadoop named after # Creator Doug Cutting’s favorite circus act Cutting’s high school rock band The toy elephant of Cutting’s son (Correct Answer) A sound Cutting’s laptop made during Hadoop’s development Comments and Answers (2) # Minimum Support=?,if total Transaction =5 and minimum Support=60% Explanation: This feature of MapReduce is “Data Locality”. are stored and maintained on the NameNode. c.Jianshu WENG d.K-means Question 35: Although the Hadoop framework is implemented in Java ,MapReduce applications need not be written in __________ . Question 37: __________ maps input key/value pairs to a set of intermediate key/value pairs. d.Lists a.SVD b) Mapper Your welcome to this quick Data Structures Objective Quiz. d) All of the mentioned a) Java a) Hardtop processing capabilities are huge and its real advantage lies in the ability to process terabytes & petabytes of data, b) Hadoop uses a programming model called “MapReduce”, all the programs should confirm to this model in order to work on Hadoop platform, c) The programming model, MapReduce, used by Hadoop is difficult to write and test. Explanation: The File System (FS) shell includes various shell-like commands that directly interact with the Hadoop Distributed File System (HDFS). ________ NameNode is used when the Primary NameNode goes down. d.Edge betweenness Hadoop achieves reliability by replicating the data across multiple hosts, and hence does not require … a.High Influential Topic Search c) Kafka * An epic story about a passionate, yet gentle man, and his quest to make the entire Internet searchable. Yes, Doug Cutting named Hadoop framework after his son’s tiny toy elephant. Explanation: Mapreduce provides a flexible and scalable foundation for analytics, from traditional reporting to leading-edge machine learning algorithms. Answer : b.tree showing how close things are to each other, 4. Hbase is a "database" like interface to Hadoop … b) The MapReduce framework operates exclusively on pairs Explanation: Hadoop Pipes is a SWIG- compatible C++ API to implement MapReduce applications (non JNITM based). The below-provided is a free online quiz related to the Hadoop topic. SON Algorithm Stands for c.Arrays Answer : c.Machine learning, Prepare For Your Placements: https://lastmomenttuitions.com/courses/placement-preparation/, / Youtube Channel: https://www.youtube.com/channel/UCGFNZxMqKLsqWERX_N2f08Q. c) Reducer c) HDFS is suitable for storing data related to applications requiring low latency data access From the below, the contenders can check the Big Data Hadoop Multiple Choice Questions and Answers. d) None of the mentioned Explanation: Doug Cutting, Hadoop creator, named the framework after his child’s stuffed toy elephant. Back to top. Question 22: Point out the correct statement: (A) Hadoop do need specialized hardware to process the data, (B) Hadoop 2.0 allows live stream processing of real time data, (C) In Hadoop programming framework output files are divided in to lines or records. d.Assignment of each edges of clusters d) All of the mentioned This Hadoop MCQ Test contains 30 multiple Choice Questions. d) All of the mentioned Let’s begin with Set 1. c.graph may contain no edges and no vertices a) Hadoop is an ideal environment for extracting and transforming small volumes of data, b) Hadoop stores data in HDFS and supports data compression/decompression, c) The Giraph framework is less useful than a MapReduce job to solve graph and machine learning. Explanation: Reduce function collates the work and resolves the results. Explanation: NameNode servers as the master and each DataNode servers as a worker/slave. Answer: b Hurry up Engineering Maths-4 Sale is Live [15th Feb – 21st Feb] Click Here. b.Pages with no PageRank Question 8: Hadoop achieves reliability by replicating the data across multiple hosts, and hence does not require ________ storage on hosts. are stored and maintained on the NameNode. d) All of the mentioned ________ is a utility which allows users to create and run jobs with any executables as the mapper and/or the reducer. The number of maps is usually driven by the total size of ____________ Since then, it is evolving continuously and changing the big data world. d.Savasere,Omiecinski and Navarag Answer: a a.Tree a) master-worker c.Assignment of each point to clusters Hadoop MCQs – Big Data Science “Hadoop MCQs – Big Data Science” is the set of frequently asked Multiple Choice questions and these MCQs are asked in different test in the past in different test. (B) Data warehousing and business intelligence, (D) Collecting and storing unstructured data. Answer: d (A) As companies move past the experimental phase with Hadoop, many cite the need for additional capabilities, including, (B) Improved extract, transform and load features for data integration, (C) Improved data warehousing functionality, (D) Improved security, workload management and SQL support. Answer : d. Taher H. Haveliwala, 14.Full form of HITS is _____________ Question 29: __________ has the world’s largest Hadoop cluster. Answer: d d.All of the above a) A MapReduce job usually splits the input data-set into independent chunks which are processed by the map tasks in a completely parallel manner, b) The MapReduce framework operates exclusively on pairs, c) Applications typically implement the Mapper and Reducer interfaces to provide the map and reduce methods. b) Data warehousing and business intelligence, d) Collecting and storing unstructured data. a.Collection of entities that participate in the network. c.Recommendation System c.Cost Explanation: Hive Queries are translated to MapReduce jobs to exploit the scalability of MapReduce. Through this Hadoop Quiz, the applicants can revise the concepts of the Big Data and Hadoop. Question 19: _______ jobs are optimized for scalability but not latency. It has important 40 basic questions about various Big Data topics. Answer: d Question 28: __________ can best be described as a programming model used to develop Hadoop-based applications that can process massive amounts of data. c) Data block Point out the wrong statement. a.Partitional A functional filesystem has more than one DataNode, with data replicated across them. top 100 hadoop interview questions answers pdf, real time hadoop interview questions gathered from experts, top 100 big data interview questions, hadoop online quiz questions, big data mcqs, hadoop objective type questions and answers b.Park-Chen-You 5. Explanation: In the context of Hadoop, Avro can be used to pass data from one program or language to another. hdfs-site.xml. c.Naive Bayes b.Collection of items in store Hence the name “Cascalog” is a contraction of Cascading and Datalog. c) C# Big Data Quiz : This Big Data Beginner Hadoop Quiz contains set of 60 Big Data Quiz which will help to clear any exam which is designed for Beginner. Question 26: What was Hadoop named after? a.Link structure of the Web graph Explanation: MapReduce is a programming model and an associated implementation for processing and generating large data sets with a parallel, distributed algorithm. Answer : b. graph may contain many edges and atleast one vertices. b) Map Task in MapReduce is performed using the Mapper() function Explanation: The default partitioner in Hadoop is the HashPartitioner which has a method called getPartition to partition. Enhance Your Knowledge in the Big Data while you take a free Practice test on Big Data MCQs Questions. Explanation: In some applications, component tasks need to create and/or write to side-files, which differ from the actual job-output files. d.Pages with spam c.Pages with no contents Hadoop Online Quiz - Following quiz provides Multiple Choice Questions (MCQs) related to Hadoop Framework. Explanation: The MapReduce framework takes care of scheduling tasks, monitoring them and re-executes the failed tasks. Explanation: There can be any number of DataNodes in a Hadoop Cluster. (B) Hive is a relational database with SQL support. c.Heatmap c.Hyperlink-induced topic Search Explanation: Data is replicated across different DataNodes to ensure a high degree of fault-tolerance. Explanation: Adding security to Hadoop is challenging because all the interactions do not follow the classic client-server pattern. c) Secondary Answer : b.3, 4.Minimum Support=?,if total Transaction =10 and minimum Support=60% Trivia World War 2 Facts Quiz: MCQ! Answer : b.Savasere,Omiecinski and Navathe, 3. a) “HDFS Shell” If the IP address or hostname of a datanode changes > The namenode need not update mapping between file name and block name The namenode updates the mapping between file name and block name The data in that data node is lost forever The data in that data node is lost forever. During start up, the ___________ loads the file system state from the fsimage and the edits log file. Answer: a Answer: a a) Reduce d.All of the above Explanation: HDFS is implemented on any computer which can run Java can host a NameNode/DataNode on it. are stored and maintained on the NameNode. d.Amazon System If you are not sure about the answer then you can check the answer using Show Answer button. Dear Readers, Welcome to Hadoop Objective Questions and Answers have been designed specially to get you acquainted with the nature of questions you may encounter during your Job interview for the subject of Hadoop Multiple choice Questions.These Objective type Hadoop are very important for campus placement test and job … 2.Point out the correct statement. Explanation: All the metadata related to HDFS including the information about data nodes, files stored on HDFS, and Replication, etc. b) NameNode ( D) a) Speed of input data generation. b) Map Explanation: Google and IBM Announce University Initiative to Address Internet-Scale. a) The Hadoop framework publishes the job flow status to an internally running web server on the master nodes of the Hadoop cluster. Question 27: All of the following accurately describe Hadoop, EXCEPT _____________ . c) User data is stored on the local file system of DataNodes a) Data Node Explanation: HDFS can be used for storing archive data since it is cheaper as HDFS allows storing the data on low cost commodity hardware while ensuring a high degree of fault-tolerance. a) The Hadoop framework publishes the job flow status to an internally running web server on the master nodes of the Hadoop cluster D. A sound Cutting's laptop made during Hadoop's development. Point out the correct statement. Explanation: A DataNode stores data in the [HadoopFileSystem]. Answer: a ___________ part of the MapReduce is responsible for processing one or more chunks of data and producing the output results. c.Support(A ) / Support (B) Answer : d. Google, 7.Which of the following algorithm is used by Google to determine the importance of a particular page? Explanation: All the metadata related to HDFS including the information about data nodes, files stored on HDFS, and Replication, etc. b) Reducer Question 24: Hadoop is a framework that works with a variety of related tools. d.High content Hadoop MCQ Questions And Answers. c) Data Blocks get corrupted Answer : a.Pages with no outlinks, 13.Topic Sensitive PageRank (TSPR) is proposed by_________ in 2003. a.30 c.Cloaking b.Size Question 10: The Hadoop list includes the HBase database, the Apache Mahout ________ system, and matrix operations. Answer: a Answer : b.Graph, 17.A social network can be considered as a___________ A ________ node acts as the Slave and is responsible for executing a Task assigned to it by the JobTracker. d) None of the mentioned a) Improved data storage and information retrieval, b) Improved extract, transform and load features for data integration, c) Improved data warehousing functionality, d) Improved security, workload management, and SQL support. c) Reduce Task in MapReduce is performed using the Map() function Explanation: Total size of inputs means the total number of blocks of the input files. Question 17: ___________ is general-purpose computing model and runtime system for distributed data analytics. d) DataNode is aware of the files to which the blocks stored on it belong to a) Replication Factor can be configured at a cluster level (Default is set to 3) and also at a file level, b) Block Report from each DataNode contains a list of all the blocks that are stored on that DataNode, c) User data is stored on the local file system of DataNodes, d) DataNode is aware of the files to which the blocks stored on it belong to. b) Hadoop Streaming Hadoop HBase MCQs. a) HDFS is not suitable for scenarios requiring multiple/simultaneous writes to the same file HDFS is implemented in _____________ programming language. b.LiveJournal Explanation: Apache Hadoop is an open-source software framework for distributed storage and distributed processing of Big Data on clusters of commodity hardware. Explanation: Rather than building Hadoop deployments manually on EC2 (Elastic Compute Cloud) clusters, users can spin up fully configured Hadoop installations using simple invocation commands, either through the AWS Web Console or through command-line tools. a.Heterogeneous and multi relational dataset Which of the following scenario may not be a good fit for HDFS? Answer: c.Cloaking, 9.Doorway pages are_________ Web pages. Question 12: Point out the correct statement: (A) Hive is not a relational database, but a query engine that supports the parts of SQL specific to querying data. Explanation: The File System (FS) shell includes various shell-like commands that directly interact with the Hadoop Distributed File System (HDFS). Question 2: What are the 3v’s of Big Data? Explanation: Maps are the individual tasks that transform input records into intermediate records. c.Collection of vertices & edges in a graph b.Low quality Answer: c.Recommendation System, 20.An approach to a Recommendation system is to treat this as the _______________ problem using items profiles and utility matrices. Apache Hadoop (/ h ə ˈ d uː p /) is a collection of open-source software utilities that facilitates using a network of many computers to solve problems involving massive amounts of data and computation. Explanation: Cascading hides many of the complexities of MapReduce programming behind more intuitive pipes and data flow abstractions. d.graph may contain no vertices and many edges d) None of the mentioned b.Savasere,Omiecinski and Navathe a) Maptask Running a ___________ program involves running mapping tasks on many or all of the nodes in our cluster. c.Cost Best Hadoop Objective type Questions and Answers. So, check all the parts and learn the new concepts of the Hadoop. d) Replication Answer : b.Low quality, 10.PageRank helps in measuring ________________ of a Web page within a set of similar entries. Question 38: The number of maps is usually driven by the total size of ______________ . Question 39: _________ is the default Partitioner for partitioning key space. Individuals can practice the Big Data Hadoop MCQ Online Test from the below sections. a) Hadoop do need specialized hardware to process the data, b) Hadoop 2.0 allows live stream processing of real-time data, c) In Hadoop programming framework output files are divided into lines or records.